M.L.
L.,
Welcome to the world of croup. You will probably be a member until you son is about 3 or 4. My daughter is 5, 6 next month and she had croup twice a year since she was 2. Not sure how much you know about croup, but it is the swelling of the voice box. My daughter is now big enough that the swelling doesn't affect her. It is viral, usually the result of a cold, so there are no antibiotics for it. My daughter's colds would turn into croup and I learned to look for the signs. The normal process for us would be have a night of light coughing and she would wake up with a mild seal like bark. I would call the dr and they would prescribe liquid steroids to bring the swelling down. We would usually give 1-2 doses of that and she would be fine.
Croup really sounds scary, but it isn't too bad. We never tried the steamy bathroom but we did spend many a nights wrapped up in blankets sitting on the deck. We also had croup in the warmer weather and an open freezer door works also. As long as your son is not running a fever, he is not contagious. Now that he has had croup, don't be surprised if he gets it often.
Hope this helped.
M.